Package launderrvictim is the /r/-DATA-DECLARED variant of the launder-game victim. Its Immutable type is declared HERE (in /r/), not in /p/launderpkg. This is the recommended inter-realm pattern: realms declare their own logic data types.
The hypothesis under test: with /r/-declared logic data, the Attack H/I/J/K/L laundering shapes are structurally impossible. Tests against this victim should all fail to mutate gImm.
GetImm hands out a pointer to gImm. Standard "victim exposes a pointer to its state" antipattern — but with /r/-declared data, the attacker should still be unable to write through it.
gnokey query vm/qeval -remote "https://api.gno.berty.io:443" -data "gno.land/r/tests/vm/launderrvictim.GetImm()"